a motorist cover a distance of 1500m in 1 min 12 sec . find his speed in km and hour
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Answer:
Step-by-step explanation:
distancw covered =1500
time taken= 1min12sec = 72 seconds
therefore,speed=distance/timetaken
=1500/72 m/s
=0.048 m/s
now, if 1 m =1/1000km
1sec=1/3600 hr
so, 0.048m/s=0.1728km/hr
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